Mounting for vacuum tubes



MOUNTING FOR VACUUM TUBES Filed Deo. 8, 1920 i 1. ff l aan@ 'Jang 1', 192s.-

y' Uisufrlsl)*s1".affres APATENT oFincE.

A .ARTHUR nAnDocx, or EAST ORANGE, NEW JERSEY, AssIGNoR To WEsTEaNELEcTnIe qonrANr, mconronATEn, or NEW YORK,- N. Y.; A coEPoEATIoN E NEW Yomz.

MOUNTING Eon VACUUM TUiaEs.-

Appucation med ne'eembr '8, 1920i serial No.' 429,213.

invention relates to 'mountings .for vacuum tubes and an object thereof 1s. to provide mountings for vacuum tubes of such nature as to protect them against injuryv from external blows or other disturbances.-

As is well known it is' essential for the proper operation of a vacuum -tube that the various electrodes be maintained in acertain predetermined spaced larrangement relative to each other. Because of the comparatively light construction of the electrodes of a tube a slight blow is 'often effective to cause vibration of the electrodes vwhich vwill vary their relation to-'such an extent that the efficiency 'of the tube is seriously'impaired.

. In accordance with thisinvention-objec-` tionablevibration ofthe electrodes 1s prevented by providing an' elasticv mounting for.

the tubeA s'o that any shock or vibration of its Supporting structure will beY absorbed Without being 'appreciably transmitted to the electrodes. As one specific example of such a 'mountingit has been found that a- .tube mounted onconical springs and provided with a-cushionof elastic material to damp the vibration is very effective for producing the effect desired. The connec tion of a tube'. carried by such a mounting with its circuits is greatly. simplilied by completing the electrical lconnection through the springs.

' 'This invention will be better understood by having reference to the following ecication and accompanying-drawingsw erein Figure l is a perspective view of the socketl -mounting and Figure 2 is a bottom 'view of,

the vsocket carrying member. f

.The member, 10,` preferably of insulating material, carries -thesocket 11 which is pro# l vided with a bayonet slot 12;." Apertures 13 extending through the member-10are ar vranged within the socketA and' lie at the cprformedof electrically conducting material.

. Interposed between thel opposing .faceso the members 1()V band'17 are cushions 21 of elastic material, such, foreexample as soft rubber. These-cushions serve to damp the vibration of the member 410 and preferably arein the' form of cylinders having their ends locatedin cups'20. attached 'to the members 10 and 17 by means of the screws 19.

. This arrangement is efective to nulliythe effect of any shocks or other disturbances t0 which the support may be subject. The springs 16 `allow` comparatively free movement of the member 1 0, AWhile the cushion 21 4is effective -to damp any vibration im.` pressedupon said member. cushion 2 1 becomes hard after 'a period of usage it may be readily removed-by forcing apartthe members 10 and 17 suicient to allow the endsof the cushion to clear the edges of the cup. A new cushion may be' inserted in the samegeneral manner.

In theuse of thi@ device themember 17 '1s mounted uponf-a suitable support 22 and the wires 23 ofthe 'various circuits areconnected tothe bolts 18 according to'a pre- '4 determined[arrangement A vacuum tube 211 placed in the socket `with its terminalsv 25' passing through the apertures 13 will fthen' In' case the be electricallyA connected with the proper cir- 1 cuits Athrong members 15 and the springs 16. lThis ar,- rangement prevents the possibility 'of the connections between' tlief contact' members andthe .wires ofthe circuit-being broken due to vibration of the member 1( the medium .of the contact ners of a s'quare.- Attached tothe under4 Although this device is shown in the em# face of the member 10 by means of the' bolts 14 arethe resilient contact members 15.

'These contact members are arranged in j pairs at opposite ends of the member 10 and ll te each one of a-pair has its inner end turned toward the opposite 'memberthereo each of said ends 1being 'arranged directly beneath and closing one ofjthe aperturesin said member. Attached' to the contactinembers.

and to the member- 10 by means lot the bolts 14 are the conical springs 16 which are -bodiment ad'apt'ed for use in-connection with 1. -In" a "device of the character described,-

a member for holding a vacuum tube, a base,

resilient n iembers supporting said 'holdingmember on. saidbas'e, 'cupslon the adjacent .faces of said holding member and base, and

a cylinder of elastic material having its ends arranged in said cups.

2. A device of the character described comprising a base, means for holding a vac-A uum tube, resilient electrical conductors for supporting said holding means on said base, resilient contact members on said holding means, said contact members and said conductors being electrically connected and means for damping vibration said holdnected, and means includmg a cushion of non-metallic elastic material for damping the. vibration ofsaid holding means.

4. A device of the character described 'comprising a base member, aA member for.

holding a vacuum tube, resilient electrical conductors supporting one vof said members from the other contact members on said holding member, said contact members and said conductors beingelectrically connected,

cups on the adjacent vfaces of said base and said holding member and cylinders of soft rubber arranged with the ends thereof in said cups.

5, A shock absorbing mounting for vacu- L urn tubes comprlslng a 4socket having vcontact members to engage the terminal blocks of a vacuum tube, resilient electrical conductors supporting said socket, electrical connections between said conductors and said contact members and means for damping vibrations of said socket.

In Witness whereof; I hereunto subscribe my name this 1st day of' December A. D.,

1920. 1 A ARTHUR HADDOCK. 

